Answer: D.
James Oglethorpe constructed forts in southern Georgia which created a buffer between South Carolina and Florida
Step-by-step explanation:
Of the three reasons stated for Georgia to be founded (charity, economics, and defense), the defense of South Carolina was the most successful one.
By the 1730s, South Carolina, a very profitable British colony, was always endangered a possible attack by the Spanish in Florida, So Georgia was meant to become a military buffer.
To that end, James Oglethorpe, a former army officer, built forts and brought the martial Highland Scots to seize Fort King George.